Can nutrition rating systems be used in supermarkets to encourage healthier spending habits?
A new study by Cornell University researchers sought to answer that very question by tracking the purchasing records in a supermarket chain that uses the Guiding Stars System to rate the nutritional value of foods for sale.
The researchers, including Cornell Food and Brand Lab's David Just, PhD, and Brian Wansink PhD, author of Slim by Design (forthcoming), studied the sales records of over 150 Hannaford Supermarkets in the Northeastern United States between January 2005 and December 2007.
They collected data from over 60,000 Guiding Star rated food items. The Guiding Stars System brands items with zero, one, two or three star rating (with three stars being the most nutritious).
The amount of beneficial ingredients, such as vitamins and whole grains, are taken into account along with the amount of innutritious ingredients such as trans-fat or added sugars, both of which affect the nutritional rating of that item.
Researchers found that sales of less healthy foods – such as highly processed snack foods – fell by 8.31% when branded with a nutrition rating while the percentage of healthy food purchases rose by 1.39%.
The authors also noticed that the use of the Guiding Stars system led to an overall decline in supermarket sales. However, this is mainly due to the reduced amount of purchased "junk food."
According to lead author John Cawley, PhD, the decline in the sales of the less healthy foods was "perhaps the leading catalyst for the trend toward more nutritious food purchases." Previous studies may have not noticed this trend because they focused only on sales of foods with higher nutrition ratings.
Researchers concluded that nutrition rating systems, such as the Guiding Star system, may be worthwhile as they seem to lead consumers to purchase less "junk food" in favor of healthier options.
Sandra Cuellar | Eurek Alert!
New Formula for Life-Satisfaction
01.10.2015 | Rheinische Friedrich-Wilhelms-Universität Bonn
Carbon storage in soils: Climate vs. Geology
14.09.2015 | Universität Augsburg
Nondestructive material testing (NDT) is a fast and effective way to analyze the quality of a product during the manufacturing process. Because defective materials can lead to malfunctioning finished products, NDT is an essential quality assurance measure, especially in the manufacture of safety-critical components such as automotive B-pillars. NDT examines the quality without damaging the component or modifying the surface of the material. At this year's Blechexpo trade fair in Stuttgart, Fraunhofer IZFP will have an exhibit that demonstrates the nondestructive testing of high-strength automotive body parts using 3MA. The measurement results are available in a matter of seconds.
To minimize vehicle weight and fuel consumption while providing the highest level of crash safety, automotive bodies are reinforced with elements made from...
The MICADO camera, a first light instrument for the European Extremely Large Telescope (E-ELT), has entered a new phase in the project: by agreeing to a Memorandum of Understanding, the partners in Germany, France, the Netherlands, Austria, and Italy, have all confirmed their participation. Following this milestone, the project's transition into its preliminary design phase was approved at a kick-off meeting held in Vienna. Two weeks earlier, on September 18, the consortium and the European Southern Observatory (ESO), which is building the telescope, have signed the corresponding collaboration agreement.
As the first dedicated camera for the E-ELT, MICADO will equip the giant telescope with a capability for diffraction-limited imaging at near-infrared...
Self-driving cars will be on our streets in the foreseeable future. In Graz, research is currently dedicated to an innovative driver assistance system that takes over control if there is a danger of collision. It was nature that inspired Dr Manfred Hartbauer from the Institute of Zoology at the University of Graz: in dangerous traffic situations, migratory locusts react around ten times faster than humans. Working together with an interdisciplinary team, Hartbauer is investigating an affordable collision detector that is equipped with artificial locust eyes and can recognise potential crashes in time, during both day and night.
Inspired by insects
An interdisciplinary team of researchers has built the first prototype of a miniature particle accelerator that uses terahertz radiation instead of radio...
At present, tiny magnetic whirls – so called skyrmions – are discussed as promising candidates for bits in future robust and compact data storage devices. At...
01.10.2015 | Event News
30.09.2015 | Event News
17.09.2015 | Event News
09.10.2015 | Earth Sciences
09.10.2015 | Life Sciences
09.10.2015 | Life Sciences